Reinforcing insert for antidrip attachment for paint brushes



1951 .1. F. KUNAU REINFORGING INSERT FOR ANTIDRIP ATTACHMENT FOR PAINTBRUSHES Filed Jan.

I? ll 7 l8 Fig.3.

John F. Kunau INVENTOR.

BY Qwaofiu Patented Nov. 6, 1951 UNITED 1 STATES rem OFFIQE REINFORCINGINSERT FOR ANTIDRIP ATTACHMENT FOR PAINT BRUSHES 1 Claim.

The present invention relates to the category of inventions classifiedas attachments for paint brush heads and referred to as drip collectingcups, collars, guards and the like and the object of the invention is tostructurally, functionally and otherwise improve upon those attachmentswith which I am familiar.

With further reference to the prior art it may be stated that thegenerally accepted type of drip collector embodies a trough or channelwhich in practice serves to trap paint such as runs down the varioussurfaces of the head while painting a ceiling or similar overheadsurface. The majority of drip collectors are rigid and are made to fit agiven size of a brush. Some drip collectors however have been made ofrubber to snugly embrace the brush head and to thereby serve toaccommodate brush heads of varying sizes. The difliculty, however, isthat if a rubber type trough equipped collar is overstretched, the wallsforming the trough will collapse and become ineffective.

It follows from the above that the present invention has to do with animproved reinforcing insert for an elastic or resilient collar having atrough of the stated type, said collar being improved by havingincorporated in the transverse end portions reinforcing inserts, thelatter making the collar more practical and yet allowing same to befitted on brush heads of differing sizes.

More explicitly, the invention has to do with a metal or equivalentinsert used as a reinforcing unit, the same characterized by a U-shapedsheet metal clip and suitable reinforcing rod members carried by onelimb of the clip.

Other objects and advantages will become more readily apparent from thefollowing description and the accompanying illustrative drawings.

In the drawings:

Figure 1 is a perspective view of a conventionaltype paint brushequipped with an anti-drip attachment collar constructed in accordancewith the principles of the present invention;

Figure 2 is a perspective View of the reinforcing insert;

Figure 3 is a horizontal section on the line 3-3 of Figure 1, looking inthe direction of the arrows; and,

Figure 4 is a fragmentary cross section on the line 44 of Figure 3.

Referring now to the drawings by distinguishing reference numerals thewooden or equivalent head of the brush is denoted by the letter A thesame having a suitable handle B. The usual metal shield around the headis denoted at C and the bristles at D.

The rubber or equivalent anti-drip attachment is denoted, in a unitarysense, by the numeral 6. It is in the form of a channel-shaped collarwhich is shaped and made to fit around a head or shield of the brush.When in place the collar or attachment defines a pair of longitudinal orside channels I and 8 and a pair of transverse or end channels 9 and itwhich in practice serve as drip collecting channels or troughs. Theinner wall of the collar is suitably tapered and relatively thin anddenoted by the numeral I I and the outer wall is comparatively thick anddenoted by the numeral I 2.

" I provide reinforcing inserts for opposite transverse end portions ofthe collar and each insert is of the construction shown in Figure 2.Here the insert comprises a metal or equivalent U- shaped clip l3 havinga bight portion I4 and inper and outer limbs l6 and I5 respectively. Theinner limb i6 is somewhat longer than the outer limb l5 and is centrallyimbedded in the inner thinner wall H as shown to advantage in Figure 4.The outer limb is appropriately imbedded in the outer thicker wall l2 asshown in Figure 4. The outer limb is also provided with substantiallyU-shaped reinforcing rods. The main or body portions ll of the rodsbeing imbedded in the wall I2, the end portions extending around thecorners of the adjacent channels and'being imbedded in the correspondingend portions of the side walls I2, said laterally bent ends beingdenoted by the numerals [8.

These reinforcing inserts substantially span and brace the transverseends only of the head encircling collar. There is suflicient elasticityand resiliency in the collar to make it adjustable. By keeping thetransverse ends of the channel at all times open, the side channels arealso maintained spread and open. In other devices the channel or troughis often collapsed and therefore closed. In the present improvedarrangement the channels are completely open for effective drip trappingresults.

I desire to stress the fact that the cross or transverse channels 9 andI0 are braced from end to end and the adjacent end portions of therespective and intervening longer channels I and 8 are also braced dueto the provision of the laterally bent ends [8 of the reinforcing rods.It follows that all of the features contribute their proportionateshares in providing an adequately and satisfactorily usable paint brushanti-drip attachment.

It is thought that persons skilled in the art to which the inventionrelates will be able to obtain a clear understanding of the inventionafter considering the description in connection with the drawings.Therefore, a more lengthy description is regarded as unnecessary.

Minor changes in the shape, size and arrangement of details comingwithin the field of invention claimed may be resorted to in actualpractice, if desired.

4 Having desc 'ibed the invention, what is REFERENCES CITED claimed asnew 1s:

As a new article of manufacture and as a corn- The references are ofrecord in the ponent part of a paint brush anti-drip attachfile of thlsPatent: r ment of the class described, a U-shaped clip em- UNITED STATESPATENTS bodying iong and short limbs, and a, pain of U M Number NameDate shaped rigid remforclng rods, the respective 1n- 1,139,627 BaltzleyMay 18, 1915 termediate portions of sand rods being r gidly. o

. .7 1,864,059 Frenkel June 21, 1932 connected with the short limb ofsaid clip and r r i 1,887,525 spiegelhalter Nov. 15, 1932 the freelateral ends of sand rods being directed 10 f h b d d b 1,906,157Jerousek Apr. 25, 1933 mm sai s or 1m an towar sal ong 1m 2,256,650 Reidet a1 Sept. 23, 1941 JOHN F. KUNAU.

